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Zno nanoparticles: improving photosynthesis, shoot development, and phyllosphere microbiome composition in tea plants

文献类型： 外文期刊

作者： Chen, Hao 1 ; Song, Yujie 1 ; Wang, Yu 1 ; Wang, Huan 1 ; Ding, Zhaotang 2 ; Fan, Kai 1 ;

作者机构： 1.Qingdao Agr Univ, Coll Hort, Qingdao 266109, Peoples R China

2.Shandong Acad Agr Sci, Tea Res Inst, Jinan 250100, Peoples R China

关键词： Camellia sinensis (L.) O. Kuntze; ZnO NPs; Photosynthetic capacity; Sprouting of new shoots; Epiphytic microorganisms; Endophytic microorganisms; Phyllosphere

期刊名称：JOURNAL OF NANOBIOTECHNOLOGY （ 影响因子：10.6； 五年影响因子：11.4 ）

ISSN：

年卷期： 2024 年 22 卷 1 期

页码：

收录情况： SCI

摘要： Background Nanotechnology holds revolutionary potential in the field of agriculture, with zinc oxide nanoparticles (ZnO NPs) demonstrating advantages in promoting crop growth. Enhanced photosynthetic efficiency is closely linked to improved vigor and superior quality in tea plants, complemented by the beneficial role of phyllosphere microorganisms in maintaining plant health. However, the effects of ZnO NPs on the photosynthesis of tea plants, the sprouting of new shoots, and the community of phyllosphere microorganisms have not been fully investigated. Results This study investigated the photosynthetic physiological parameters of tea plants under the influence of ZnO NPs, the content of key photosynthetic enzymes such as RubisCO, chlorophyll content, chlorophyll fluorescence parameters, transcriptomic and extensive targeted metabolomic profiles of leaves and new shoots, mineral element composition in these tissues, and the epiphytic and endophytic microbial communities within the phyllosphere. The results indicated that ZnO NPs could enhance the photosynthesis of tea plants, upregulate the expression of some genes related to photosynthesis, increase the accumulation of photosynthetic products, promote the development of new shoots, and alter the content of various mineral elements in the leaves and new shoots of tea plants. Furthermore, the application of ZnO NPs was observed to favorably influence the microbial community structure within the phyllosphere of tea plants. This shift in microbial community dynamics suggests a potential for ZnO NPs to contribute to plant health and productivity by modulating the phyllosphere microbiome. Conclusion This study demonstrates that ZnO NPs have a positive impact on the photosynthesis of tea plants, the sprouting of new shoots, and the community of phyllosphere microorganisms, which can improve the growth condition of tea plants. These findings provide new scientific evidence for the application of ZnO NPs in sustainable agricultural development and contribute to advancing research in nanobiotechnology aimed at enhancing crop yield and quality.

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